Binding-post.



G. W. GOODRIDGE.

BINDING POST.

APPLIOATION FILED 1330,17, 1908.

Patente May 8l, 15.91).

Q g v M" l L" v tinrrnn lannion.,

GILBERT NV. GOODBIDGE, F BRIDGEPORT, CONNECTCUT, ASSIGNOR TO THE PERKINSELECTRIC SWITCH MANUFACTURING COMPANY, OF BRXDGEPORT, CONNECTICUT,

A. CORPORATIQN OF CONNECTICUT..

Application led leoember 17, 1908.

America, and residing at Bridgeport, in the county of Fairfield andState of Connecti- Cnt, have invented certain new and usetnlimprovements in Binding-Posts. ot which the following` is aspecification.

iiy invention relates to eleetrieal binding posts and particularly tobinding;` posts tor Specicaton of Letters atent.

rotary snap switches, the objeet ot' my in\'en i,

i sinned in wrappingy the wire end around the tion being` to provide animproved post in which the necessity torwrappinggq the wire beneath thehead ot' the binding screw is eliminated.

ln the aeeomjnmying drawings in which my invention is illustrated,Figure t is a per spectire ot a yporcelain switch base of oommonconstruction upon which bindingposts enibodyintl my invention aremounted; Fig. 2 is a partial pian ot" the same; Fig. 3 a Verticalsection on the line {EL-3, Fig. 2; and Fig. i is a perspective ot amodified Vtorni ot' post.

In these drawings only sutiieient ot the base and bindingl posts toillustrate the pres ent ii'ivention has been shown.

My improved binding posts, in the t'orm illustrated, are, adapted t'oruse with a rotary switch member ot' the type illustrated in the 'thomasjatent No. (3875095 that a rotary switch member having contact clipsl toeii'ilnfaeei matie contact with and slide over a blade earried by eachbindingl post. is shown, the base .i has vertical passages lt) formedtherein throat-li which the leadingin wires may be threaded directly tothe bim'lin;l posts.

Each binding post is l1ormed trom sheet metal stamped up to torm ahorizontal base pieee l1. with lateral wings l2 having threaded openingslli to receive the usual securing screws tl, which are set in trom theunderside oi the base. 'the contact blade l5 projects horizontally t'rombetween the wings l2, while the standard lt is angled into substantiallyVertieai position and provirfled with a clamp t7 through which thebinding screw 18 is threaded.` This clamp is formed in the blank bystamping` out a laterally projerting wing' on the standard It) whichsubsequently i'olded over and the hole l) .l'or the bindingr screwpunched and tapped'. To hold the wire in position it is Patenten nitty3i, toto.

Serial No. 468,043.

desirable to groove the wings of the clamp at fe, though itsntlieient'i't the groove be formed in one wing only, as in Fig. '4.The; :groote is located in line with the ent away portion 1/ ot' thebase piece and the post is secured npon the insulating base A so thattlfe parts ic and bl/ are a'lined with the pas- 10. and the leadiiigdnwire may thus be easily threaded np into the groove u; of the elamp.'Ibis is a coiisiderable convenience as it Saves the time ordinarilyconbindingr screw. and furthermore a greater contact surtaeeis presentedaml a surer contact made by the clamp than when the wire is merely"twisted around thewbinding screw and secured beneath the head of thelatter.

iclaim as my intention:

i. .lt combined eontart and binding post7 comprisingv a base Vwithlaterally extending perforated seem-ink;r ears and a contact bladeintegral therewith and projecting;l between i the same. together witlian integral upright standard baring;4 a lugr'strueli' therefrom and bentaround to l'orm a chimp and an actuating; screw passing' through themembers ot the chimp, said base being cut away between the laterallyextending ears to leave clearanee tor a leading-in wire, and said 'lun1pbein;V lot'atett thelem'er `to reeeiye Isaid wire` substantially asdescribed.

2. .in insulating base ot a' rotary snap :switch lia-vint,r holes forthe passage ot the wires. together with an integral combined contact.and binding; post comprising a-base pieee with laterally extendingears/'and a contact blade projecting between thel same, together with anuprit'ht standard having a lug bent aroimdto t'orm a binding clamp7V andan aetuating'scrow passingthrough the members ot' the clamp, srid basebeing eut away between thelatorally extending ears to leave clearancefor a leading-in wire and said clamp being loeattal over the wire holein the bas*l and adapted to receive the leading-inwire threadedtherethrough, substan tially as described.

il. blank tor a combined Contact. and bindiin;- post. comprising a metallstrip having one end shaped 'for a contat-ty blade, a

base portion adjacent said blade having' perl'orated lugs oxtemlingilaterally on either side of said blade, a post portion adjacent saidbase portion havinn a lateral tlange :ulnplcd to he, lient around toforni a clamp, smid hugo portion being perforated t0 afford 11mm-:invefor .the lending-in wire and said pmt and clamp-lng portims beingperforated with halos of the saine size adapted to he brought intoregister and ihreaded to rewive :in zictnaiing screw.

1. A combincd integral Contact and binding posi. con'inrising a has@with laterally vxlnnding perfmzxt'wl securing oars, ai con tart hhidvprojecting horizonl'nll from bctn'wn Suid cnrs, together with nn uprightstandard having :i lng' struck therfroni and bvnt :ii-ouml to forni achimp, :in actuating Screw pzisjing' hinnggh this @linnn mi@ banc beingcut between the securing unix to leave clearance for n lczniingyinvfirrn uid iilaiiip being located iliQrenVc-r lo receive said i c andone member of lha: clump being 'rc1' cally' groovecl it@ hold theii'irerin position., Sulistaniiillyis descriheffl.

ln testimony Whrcof l have Signed inf;

A. Jones,

'H'. TV. (l@nubi-.niniimiix

